Electricity Live

Great Britain’s electricity on Wednesday 8 September 2021

On Wednesday 8 September, demand averaged 30.5 GW. Renewables supplied 20%.

30.5GW AVERAGEWind3.82 GW12%Hydro0.19 GW1%Biomass1.10 GW4%Solar2.19 GW7%Gas13.66 GW44%Coal0.63 GW2%Imports4.47 GW14%Nuclear5.21 GW17%30.5GW AVERAGE12%44%14%17%
Price
£188.74/MWh
Day average £188.74
Demand30.5GW
Generation 26.8Transfers 3.7
Fossil fuels44%
Renewables20%
Other34%
Carbon intensityModerate
216g/kWh
0Day average 216300
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Recorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hour

Key moments

On Wednesday 8 September 2021, gas supplied 44% of Great Britain’s electricity and nuclear 17%. Demand peaked at 37.3 GW at 12:05. Carbon intensity averaged 216 g/kWh and the price £188.74/MWh. Wind generation peaked at 5.0 GW at 22:20. Solar generation peaked at 7.4 GW at 13:00. Carbon intensity was lowest at 01:00 (185 g/kWh) and highest at 07:00 (250 g/kWh). The wholesale price ranged from £103.03/MWh at 23:30 to £340.69/MWh at 18:30. Gas made 51% of the electricity generated in Great Britain, compared with 42% across 2021.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 2.197.0%Wind 3.8212.2%Gas 13.6643.7%Hydro 0.190.6%Biomass 1.103.5%Nuclear 5.2116.7%Coal 0.632.0%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 30.5avgGeneration 26.8avgTransfers 3.7avg
The day in figurespeaks, averages, totals
Peak demand37.3GW · 12:05
Low 21.7 · 03:35Avg 30.50–40 GW
Made in Great Britain88%of demand
Generation 26.8Transfers 3.7 GW
Net imports90GWh
In
100 Out
10
Zero-carbon share43%of generation
Nuclear 19%Hydro 1%Wind 14%Solar 8%

Transfers · Wed 8 Sept

Interconnectors and storage

On Wednesday 8 September 2021, Great Britain imported 100 GWh and exported 10 GWh through its interconnectors. The most came from France (58 GWh), and the most exports went to Ireland (10 GWh).

All interconnectors

Wed 8 Sept
Imported
100GWh
Exported
10GWh
Net in
90GWh
Average net flow
3.75GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.88GWImporting

In 21.2 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.42GWImporting

In 58.0 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.42GWExporting

In 0.1 GWhOut 10.2 GWh

Netherlands

BritNed

Average0.87GWImporting

In 20.8 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.07GWPumping

Generated 7.1 GWhPumped 8.8 GWh

All cards share one scale, so you can compare their heights. Each country can have more than one cable.

Download the 5-minute data for this day: CSV · JSON. See what the figures mean.